CN101253680A - Motor drive - Google Patents
Motor drive Download PDFInfo
- Publication number
- CN101253680A CN101253680A CNA200680031558XA CN200680031558A CN101253680A CN 101253680 A CN101253680 A CN 101253680A CN A200680031558X A CNA200680031558X A CN A200680031558XA CN 200680031558 A CN200680031558 A CN 200680031558A CN 101253680 A CN101253680 A CN 101253680A
- Authority
- CN
- China
- Prior art keywords
- motor
- circuit
- drive
- position detection
- detection signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
- H02P5/74—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more ac dynamo-electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
A motor drive device includes: a position detection signal processing circuit for processing a position detection signal of a plurality of motors; a pre-drive circuit for generating an electrical connection switching signal of the motors; a plurality of power switching circuits for supplying current to the motors according to the output of the pre-drive circuit; and a motor switching circuit for instructing motor drive switching. The motor drive device alternately drives a plurality of motors. In accordance with the input signal to the motor switching circuit, the position detection signal processing circuit selects a position detection signal of a motor to be drive from the motor position detection signals, inputs the position detection processing signal to the pre-drive circuit, thereby selecting one of the power switching circuits.
Description
Technical field
The motor driver of the equipment that the present invention relates to a plurality of motors are alternately moved and use.
Background technology
In recent years, in various AV equipment and OA equipment, it is more that a plurality of motors are used to the situation of an equipment (set).In addition, domestic electric appliance also has the equipment of a plurality of motors such as comprising dishwasher or dry cleaner.
In the past, in order to drive or control a plurality of motors, each motor was provided with drives with circuit, control and use circuit.Therefore, the circuit complexity becomes the miniaturization of obstruction equipment, the main cause of low price.In order to solve this problem, proposed a plurality of drivings are carried out with circuit the structure of a chip ICization.For example, this structure is disclosed in No. 2662397 communique of Japan Patent.
Disclosed technology is in this patent gazette, by the king-sized constant-current driving of loss is connected the structure of the outside of IC with element, increase the technology that the heating that caused increases thereby alleviated loss in the IC that when a plurality of drive circuits are carried out a chip, becomes big problem.
Fig. 7 is illustrated in the technology of putting down in writing in this patent gazette in the past.In Fig. 7, drive controlling IC401 is made of a plurality of push-pull type drive blocks 402, constant-current drive circuit piece 403 and power supply controll block 404 chip.
This push-pull type drive block 402 is according to the signal that is input to input terminal, by lead-out terminal+OUT ,-OUT outputs to the output voltage of two polarity respectively lead-out terminal carried out outside DC motor M 1, the M2 that connects.In addition, constant-current drive circuit piece 403 carries out constant-current driving according to the input signal that is input to input terminal to the load that is connected to lead-out terminal.Also there is the output by constant-current drive circuit piece 403 to drive with the driving of the outside of IC401 with transistor Tr 1 via being connected to, carry out the structure of constant-current driving of solenoid (solenoid) S of iron core (plunger), thereby can alleviate the loss in the IC, also multiple drive controlling piece can be carried out a chip ICization.
In addition, different with the technology of in this patent gazette, putting down in writing, drive unit about a plurality of photoconductor drums that the tandem multicolor image formed device drive with a plurality of DC brushless electric machines has respectively independently proposed the incorporate technology of drive circuit that each DC brushless electric machine is used.For example, this technology is disclosed in the Japanese Patent Application Laid-Open 2003-202719 communique.
The technology of in this communique, putting down in writing, a plurality of DC brushless electric machines to a plurality of photoconductor drums of drive, by part of functions a plurality of publicization of motor shaft ground is switched the chipization of carrying out that hot-wire coil makes part beyond the variable switch element of output, thereby realized the structure miniaturization, reduce cost.
Use Fig. 8, Fig. 9 that the circuit diagram action of the motor driver of putting down in writing in this communique in the past is described.Fig. 8 is the circuit structure diagram that is illustrated in the conventional art of putting down in writing in this communique.In addition, Fig. 9 is the internal structure that is illustrated in the driver element of the conventional art of putting down in writing in this communique.
Drive unit shown in Figure 8 is the device that is used for each driven object of image processing system is rotated driving/control, is made of with circuit drive unit 500 and other various motors 503,504 driver element 505, image formation unit.Image formation unit is made of four rotating driving devices with circuit drive unit 500.Each rotating driving device is to be used for respectively the drive source that photoconductor drum 502A, 502B, 502C, 502D to image formation unit provide torque to drive.Each rotating driving device is made of no transducer DC brushless electric machine 501A, 501B, 501C, 501D and corresponding respectively reducing gear and encoder respectively.
The signal that driver element 505 is accepted from encoder drives each DC brushless electric machine 501A, 501B, 501C, the 501D of image formation unit with circuit drive unit 500, also drives other various motors 503,504.Usually, this driver element 505 constitutes at the various IC of a tellite by carrying.
Fig. 9 is the figure of the internal structure of the driver element 505 in the presentation graphs 8.Driver element 505 is made of with IC509, back-emf voltage testing circuit 510 drive circuit 508, control.Back-emf voltage testing circuit 510 is each back electromotive force upward responded to mutually that detects by the stator coil of the three DC brushless electric machine 501A that are connected, and this detection signal is outputed to the circuit that drives with IC506.Drive circuit 508 is made of with IC506, four switch element (switch element) 507 driving.
Drive circuit 508 is endowed speed control signal from control with IC509, and also each DC brushless electric machine 501A, 501B, 501C, the 501D to each rotating driving device gives the three-phase voltage drive signal.As mentioned above, in drive circuit 508 except the part of switch element 507, at least a portion function across a plurality of motor shafts by a chipization.By this structure, the structure of driver element 505 is miniaturized, and has realized cost decline.
These technology in the past all need drive with transistor or switch element in the connection of the outside of a chip IC, and, require all structural details of the circuit of drive motors are carried out a chip ICization for the further simplification of circuit structure and miniaturization or cost reduce.Yet, there is problem because of the IC temperature inside rising of loss generation, be difficult to the entire infrastructure element is assembled into chip IC inside and constitute.
But, in having the equipment of a plurality of motors, the for example such equipment of the automatic transforming disk machine of CD (autochanger) is also arranged, drive to use etc. with lifting, the disc spins of, pallet in the loading and unloading of dish and use motor as drive source independently of one another, each motor need not to move simultaneously.For example, this equipment is disclosed in international disclosing in the WO2002/086883 book.In addition, the dishwasher as family expenses is arranged also, make a plurality of motors of cleaning motor, draining electric motor for pump, fan electromotor etc. alternately move the equipment that uses.For example, this dishwasher is disclosed in the Japanese Patent Application Laid-Open 2001-286175 communique.
Therefore, for the motor driver of the equipment that so a plurality of motors is alternately moved use, proposed to switch the technology of the motor that will drive.The technology of putting down in writing in these communiques, by not needing to drive simultaneously in the equipment of a plurality of motors, the motor that drive circuit drove of switch motor alternately moves it, thereby can the common motor drive circuit and its control circuit, has realized miniaturization, low price thus.
Figure 10 is illustrated in the technology of putting down in writing in the described Japanese Patent Application Laid-Open 2001-286175 communique in the past.In Figure 10, switch the output of inverter (inverter) circuit 703 by load switch unit 704, thereby drive a plurality of motor 705A, 705B successively, the direct current power that inverter circuit 703 will be connected to the rectification circuit 702 of AC power 701 is transformed to AC power.Thus, be to make the control circuit unit 706 of inverter circuit 703 and motor 705A, 705B become one and shared structure.
But, in the structure of these conventional arts, have the problem of following narration.Use Figure 11, Figure 12 and, the circuit operation of the motor driver of putting down in writing in the past is described in described Japanese Patent Application Laid-Open 2001-286175 communique with reference to Figure 10.
Figure 11 is in the past the motor of motor driver in the motor rotation timing diagram when switching, and the longitudinal axis represents to move/stop switching signal, motor switching signal, the signal waveform of surge voltage (surge voltage) when switching.The transverse axis express time.In addition, Figure 12 utilizes in the past motor driver to carry out the timing diagram of motor when switching, and the longitudinal axis represents to move/stop the signal waveform of switching signal, motor switching signal, the 1st motor speed, the 2nd motor speed.The same express time of transverse axis.
In the structure of the motor driver of in described Japanese Patent Application Laid-Open 2001-286175 communique, putting down in writing, carry out the inverter circuit 703 and the control circuit unit 706 that drive a plurality of motors shared, by load switch unit 704 switch motor 705A, 705B, even but stopped inverter circuit 703, also the inertia rotation by the 1st motor produces back electromotive force, and produces surge voltage 804 shown in Figure 11 in the power switch element of inverter circuit 703.In addition, because of load switch unit 704 needs directly to switch to flow through the circuit of big electric current, so be difficult to be assembled into IC inside, it is comparatively appropriate to reach its function at the outside of IC connection mechanical relay (mechanical relay).Switching by mechanical relay under the situation of inverter circuit 703,, making the contact endurance of relay shorten and reduce reliability because of the generation of described surge voltage produces the lonely discharge of electricity.Therefore, as shown in figure 12, must adopt after the time of delay 905 that is provided with regulation, make the mode of load switch unit 704 actions, so there is long problem switching time.
Summary of the invention
Motor driver of the present invention has following structure.Described motor driver comprises: the position detection signal treatment circuit, handle the position detection signal of a plurality of motors; Predrive circuit generates the energising switching signal of these a plurality of motors; A plurality of power switch circuits (power switching circuit) according to the output of this predrive circuit, provide electric current to a plurality of motors; And the motor commutation circuit, indicate the driving of a plurality of motors to switch, described motor driver alternately drives a plurality of motors.According to input signal to the motor commutation circuit, the position detection signal treatment circuit is selected the position detection signal of the motor that should drive in the position detection signal of a plurality of motors, the position probing processing signals is input to predrive circuit, one of a plurality of power switch circuits is selected, thereby the motor that should drive is driven.
According to above structure, motor driver of the present invention is when alternately driving a plurality of motor, can realize the significantly shortening of switching time, can realize that power switch circuit is not had surge voltage and the lonely discharge of electricity, the motor driver that the life-span is long and reliability is high simultaneously.
Description of drawings
Fig. 1 is the circuit structure diagram of the motor driver of expression embodiments of the present invention 1.
Fig. 2 is the circuit structure diagram more specifically of the motor driver of embodiments of the present invention 1.
The timing diagram of the signal waveform of the each several part when Fig. 3 is the motor switching of representing in the embodiments of the present invention 1.
Fig. 4 is the circuit structure diagram of the motor driver of expression embodiments of the present invention 2.
Fig. 5 is the circuit structure diagram more specifically of the motor driver of embodiments of the present invention 2.
The timing diagram of the signal waveform of the each several part when Fig. 6 is the motor switching of representing in the embodiments of the present invention 2.
Fig. 7 is a circuit structure diagram of representing motor driver in the past.
Fig. 8 is other the circuit structure diagram of representing in the past of motor driver.
Fig. 9 is the circuit structure diagram of the driver element in the motor driver in the past shown in Figure 8.
Figure 10 is a circuit structure diagram of representing other motor drivers in the past.
The timing diagram of the signal waveform of the each several part when Figure 11 is the motor switching of representing among the motor driver figure in the past shown in Figure 10.
The timing diagram of the signal waveform of the each several part when Figure 12 is the motor switching of representing among the motor driver figure in the past shown in Figure 10.
Label declaration
101 Drive and Control Circuit unit
102 power output circuit unit
103 motors
104 motor commutation circuits
105 1 chip semiconductor elements
106 position detection signal treatment circuits
107 position probing output switching circuits
108 operational mode switch circuit units
109 predrive circuits
110 power switch circuits
111 position detectors
112 move/stop commutation circuit
113 are just changeing/are reversing commutation circuit
114 braking mode commutation circuits
115 power switch elements
116 anti-parallel connection diodes (anti-parallel diode)
117 power supplys
118 motor switching signals
119 energising switching signals
119a the 1st electrical power switching signal
119b the 2nd electrical power switching signal
120 position detection signals
121 position probing processing signals
122 move/stop switching signal
123 are just changeing/are reversing switching signal
124 braking modes are selected signal
130 predrive output switching circuits
203 position probing output switching circuit output signals
The output of 204 the 1st electric power switch circuit
The output of 205 the 2nd electric power switch circuit
206 the 1st motor speeds
207 the 2nd motor speeds
Embodiment
Below, use accompanying drawing that embodiments of the present invention are described.
(execution mode 1)
Fig. 1 is the circuit structure diagram of the motor driver of expression embodiments of the present invention 1.Fig. 2 is the motor driver circuit structure diagram more specifically of embodiments of the present invention 1.
In Fig. 1 and Fig. 2, motor driver is by constituting with lower member: Drive and Control Circuit unit 101, carry out the action control of three motors 103 (M1, M2, M3) and the processing of each position detection signal 120; The power output circuit unit 102 that constitutes by predrive circuit 109 and power switch circuit 110, predrive circuit 109 is connected this Drive and Control Circuit unit 101, output from Drive and Control Circuit unit 101, the energising switching signal 119 of the motor 103 (any of M1～M3) that generation should drive, 110 pairs of motors 103 (any of M1～M3) that drive according to the output of this predrive circuit 109 of power switch circuit provide electric current respectively; Three motors 103 (M1, M2, M3) are driven by this power output circuit unit 102; And DC power supply 117.
Constitute according to the indication that is imported into Drive and Control Circuit unit 101 via the outside of motor driver, by motor switch unit described later, only select the motor (any of M1～M3) that should drive in three motors 103 (M1, M2, M3), and with its driving.
The following formation of described motor switch unit is moved.Be imported into the motor commutation circuit 104 of Drive and Control Circuit unit 101 from the indication of the outside of motor driver.Drive and Control Circuit unit 101 comprises: position detection signal treatment circuit 106, output according to motor commutation circuit 104, from the position detection signal 120 that each position detector 111 of three motors 103 (M1, M2, M3) is exported, the position detection signal 120 of the motor 103 (any of M1～M3) that selection should drive, and with its amplification; And position probing output switching circuit 107, select the predrive circuit 109 that is connected with the power switch circuit 110 of the motor 103 (any of M1～M3) that should drive according to the output of motor commutation circuit 104, output is from the position probing processing signals 121 of these position detection signal treatment circuit 106 outputs.
According to this structure, the position detection signal 120 that makes the motor 103 (any of M1～M3) that should drive is with corresponding with the power switch circuit that is connected 110 on the motor 103 (any of M1～M3) that should drive and according to the change action of the motor that carries out from the indication of outside driving.
In the present embodiment, Drive and Control Circuit unit 101 comprises operation with motor/stop commutation circuit 112 and just changeing/reversing commutation circuit 113 and the operational mode switch circuit units 108 of braking mode commutation circuit 114, and above Drive and Control Circuit unit 101 and power output circuit unit 102 are built in a chip semiconductor element 105 and constitute.
Then, the function of described each circuit and the details of action are described.By the position detector 111 that has respectively in three motors 103 (M1, M2, M3), detect the permanent magnet of the rotor that constitutes each motor 103 (M1, M2, M3) and the relative position between the stator, the position detection signal of exporting from position detector 111 120 is input to position detection signal treatment circuit 106.Then, position detection signal treatment circuit 106 is according to the output of motor commutation circuit 104, the position detection signal 120 of the motor 103 (any of M1～M3) that selection should drive in three motors 103 (M1, M2, M3), the position probing processing signals 121 after this processing is input in the position probing output switching circuit 107.And, in position probing output switching circuit 107, also import the output of motor commutation circuit 104, thus, the output signal of position probing output switching circuit 107 is selected and be input to the power output circuit unit 102 of the motor 103 (any of M1～M3) that should drive.
Power output circuit unit 102 comprises: predrive circuit 109, and from the output of Drive and Control Circuit unit 101, the energising switching signal 119 of the motor 103 (any of M1～M3) that generation should drive; And power switch circuit 110, according to the output of this predrive circuit 109, the corresponding motor 103 (any of M1～M3) that drives provides electric current.
Operational mode switch circuit units 108 is by constituting with lower member: move/stop commutation circuit 112, the operation of switch motor or stop; Just change/reverse commutation circuit 113, the just commentaries on classics or the counter-rotating of switch motor; And braking mode commutation circuit 114, select idle mode (free run mode) and short braking mode (short brake mode), described idle mode is according to the motor stop signal, the power switch circuit 110 that makes three-phase is all by (off), described short braking mode is to apply electromagnetic braking, thereby motor is stopped.
Three motors 103 (M1, M2, M3) are made of three-phase brushless motor, detect the permanent magnet of formation rotor and the relative position between the stator by position detector 111.Comprise Hall element as position detector 111.
In addition, replace position detector 111, the back electromotive force that can also use detection to produce on the coil of motor 103 obtains the so-called no approach sensor of position detection signal 120 by its zero crossing, the price of motor driver integral body can be suppressed lower.
In above structure,, use Fig. 3 that the change action of three motors 103 (M1, M2, M3) is described simultaneously with reference to Fig. 1, Fig. 2.Fig. 3 is the timing diagrams of expression motors in the embodiments of the present invention 1, the 1st motor to the 2 motors from three motors 103 (M1, M2, M3) when switching.
In Fig. 3, the longitudinal axis represents to move/stop switching signal 122, motor switching signal 118, position probing processing signals 121, position probing output switching circuit output signal the 203, the 1st electrical power switching signal 119a, the 1st electric power switch circuit output the 204, the 2nd electrical power switching signal 119b, the 2nd electric power switch circuit output the 205, the 1st motor speed the 206, the 2nd motor speed 207 successively from last beginning.Transverse axis is the time.Move/stop low level in the switching signal 122 and represent that stop signal, high level represent run signal.In addition, the high level in the motor switching signal 118 represents that the 1st selection of Motor signal, low level represent the 2nd selection of Motor signal.
As initial condition, by the outside in advance to Drive and Control Circuit unit 101, import with high level (state of the 1st selection of Motor signal) indicating the motor switching signal 118 of the motor 103 (any of M1～M3) that should drive, switching signal 122 be will move/stop with low level (halted state) input, the state and the input respectively of the suitable necessity of switching signal 123 and 124 selections of braking mode switching signal just changeed/reverse.
After being set at above state, the timing of in Fig. 3, representing with T1, operation/stop signal 122 is switched to high level (run signal), and be imported into move/when stopping commutation circuit 112, because of motor switching signal 118 is imported into motor commutation circuit 104 with high level (state of the 1st selection of Motor signal), so output according to motor commutation circuit 104, the position detection signal 120 of selected the 1st motor of the input of position detection signal treatment circuit 106 is by exporting as position probing processing signals 121 after position detection signal treatment circuit 106 processing and amplifying.Position probing processing signals 121 is input to position probing output switching circuit 107, select the predrive circuit corresponding 109 according to the output of motor commutation circuit 104, detect output switching circuit output signal 203 from position probing output switching circuit 107 outgoing positions with the 1st motor.Then, be imported into the power switch circuit 110 of the 1st motor as the energising switching signal 119a of the output of the predrive circuit corresponding 109 with the 1st motor, 110 pairs the 1st motors of this power switch circuit provide electric current (the 1st electric power switch circuit output 204), thereby the 1st motor is in the timing starting of described T1.
Then, after the 1st motor reaches rotating speed of target, in the timing shown in the T2, motor switching signal 118 switched to low level (state of the 2nd selection of Motor signal) and when being input to motor commutation circuit 104, the position detection signal 120 of the 2nd motor is selected as the input of position detection signal treatment circuit 106, by exporting as position probing processing signals 121 after position detection signal treatment circuit 106 processing and amplifying.Therefore, regularly T2 is as the border, and position probing processing signals 121 is corresponding with the position detection signal 120 of the 2nd motor.
Then, position probing processing signals 121 is imported into position probing output switching circuit 107, according to the output of commutation circuit 104, select the predrive circuit 109 corresponding with the 2nd motor, detect output switching circuit output signal 203 from position probing output switching circuit 107 outgoing positions.That is, regularly T2 is the border, and position probing output switching circuit output signal 203 is corresponding with the position detection signal 120 of the 2nd motor.And, be imported into the power switch circuit 110 of the 2nd motor as the energising switching signal 119b of the output of the predrive circuit corresponding 109 with the 2nd motor.110 pairs the 2nd motors of this power switch circuit provide electric current (the 2nd electric power switch circuit output 205), thereby at timing the 2nd electric motor starting of described T2.
And in the timing of described T2, the output of position probing output switching circuit 107 breaks away from from the predrive circuit corresponding with the 1st motor 109 simultaneously.And, because of the energising switching signal 119a as the output of this predrive circuit 109 is a high impedance status, so the output 204 of the power switch circuit 110 of the 1st motor also is high impedance status (power switch element up and down all ends, the state that output impedance is high), the 1st motor stops to drive.
As described above, in the motor driver of alternately action, in the circuit that switches the motor that should drive, do not use mechanical relay, thereby the realization oncontacting is revealed, the motor that should drive is switched to the moment of other motors, and the three-phase power switch element of the motor that is still driving all is a cut-off state.
In addition, if it is in service at motor, if just be transfused in the Drive and Control Circuit unit 101 and change/reverse switching signal 123, perhaps in way, be input for switching the motor switching signal 118 of the motor that should drive near rotating speed of target, then in example in the past, after must after detecting the motor stop signal, being provided with the time of delay of regulation, make 104 actions of motor commutation circuit then, but in the present invention, as mentioned above, the power switch circuit 110 that has driven cuts off from position probing output switching circuit 107, thereby is not provided for the electric current of drive motors.Therefore, power switch circuit 110 still is connected with motor coil, so absorb the energy that is accumulated in the motor coil, therefore can not produce the lonely discharge of surge voltage or electricity in power switch circuit 110.
Therefore, can drive and switch and the motor switching timing that need not to worry can realize the significantly shortening of switching time.Thus, can realize the motor driver that high life and reliability are high.In addition, three motors 103 (M1, M2, M3) are alternately moved to be used, so switch with selected motor on the power output circuit unit 102 that is connected, only one group power switch circuit 110 moves, can not produce the increase of the heating that the power energy consumption caused, carry out a chipization easily.
In addition, by sharing of realization Drive and Control Circuit unit 101, thereby compare with the situation of usually two circuit being carried in an assembly (package), circuit scale significantly dwindles, realize the simplification of circuit, the miniaturization of assembly, so can realize motor driver at a low price.
(execution mode 2)
Fig. 4 is the circuit structure diagram of the motor driver of expression embodiments of the present invention 2.Fig. 5 is the motor driver circuit structure diagram more specifically of embodiments of the present invention 2.The structural detail identical with execution mode 1 given identical with reference to label, and omits explanation.
The different aspect of present embodiment and execution mode 1 is, predrive circuit 109 is shared as one, to be directly inputted to predrive circuit 109 from the position probing processing signals 121 of position detection signal treatment circuit 106 outputs, the output of this predrive circuit 109 is input to predrive output switching circuit 130 switches, described predrive output switching circuit 130 is selected the power switch circuit 110 of the motor 103 (any of M1～M3) that should drive according to the output of motor commutation circuit 104, and with its output.Position detection signal treatment circuit 106 constitutes in the same manner with described execution mode 1: according to the output of motor commutation circuit 104, from the position detection signal 120 that each motor of three motors 103 (M1, M2, M3) is exported, the position detection signal 120 of the motor 103 (any of M1～M3) that selection should drive, and with its amplification.
According to this structure, the power switch circuit that is connected on the position detection signal 120 that makes the motor 103 (any of M1～M3) that should drive and the motor 103 (any of M1～M3) that should drive 110 is corresponding and according to the change action of the motor that carries out from the indication of outside driving.
In above structure,, use Fig. 6 that the change action of three motors 103 (M1, M2, M3) is described simultaneously with reference to Fig. 4, Fig. 5.
Fig. 6 is the timing diagrams of expression motors in the embodiments of the present invention 2, the 1st motor to the 2 motors from three motors 103 (M1, M2, M3) when switching.
In Fig. 6, be with the different aspect of Fig. 3 of described execution mode 1, the output of predrive circuit 109 switching signal 119 of promptly switching on, the timing T5 that is input to motor commutation circuit 104 from motor switching signal 118 with high level (state of the 1st selection of Motor signal) begin till the timing T6 that is input to motor commutation circuit 104 with low level (state of the 2nd selection of Motor signal) during, as the energising switching signal of the 1st motor and export, after T6 as the energising switching signal of the 2nd motor and export.
As initial condition, by the outside in advance to Drive and Control Circuit unit 101, import with high level (state of the 1st selection of Motor signal) indicating the motor switching signal 118 of the motor 103 (any of M1～M3) that should drive, to move/stop switching signal 122 with low level (halted state) input, and just change/reverse the state of the suitable necessity of switching signal 123 and 124 selections of braking mode switching signal and import respectively.
After being set at above state, when the timing of in Fig. 6, representing with T5, the run signal of operation/stop signal 122 is input to and moves/when stopping commutation circuit 112, because of motor switching signal 118 is input to motor commutation circuit 104 with high level (state of the 1st selection of Motor signal), so output according to motor commutation circuit 104, the position detection signal 120 of the 1st motor is selected as the input of position detection signal treatment circuit 106, by exporting as position probing processing signals 121 after position detection signal treatment circuit 106 processing and amplifying.Position probing processing signals 121 is input to predrive circuit 109.Energising switching signal 119 as its output is input to predrive output switching circuit 130, select the power switch circuit corresponding 110 according to the output of motor commutation circuit 104 with the 1st motor after, from predrive output switching circuit 130 output.At this moment, in corresponding to the power switch circuit 110 beyond selected the 1st motor, predrive output switching circuit 130 is output as high impedance status.Therefore, 110 pairs the 1st motors of this power switch circuit provide electric current (the 1st electric power switch circuit output 204), at timing the 1st electric motor starting of described T5.
Then, after motor reaches rotating speed of target, in the timing shown in the T6, motor switching signal 118 switched to low level (state of the 2nd selection of Motor signal) and when being input to motor commutation circuit 104, the position detection signal 120 of the 2nd motor is selected as the input of position detection signal treatment circuit 106, by being output as position probing processing signals 121 after position detection signal treatment circuit 106 processing and amplifying.Position probing processing signals 121 is imported into predrive circuit 109, energising switching signal 119 as its output is imported into predrive output switching circuit 130, select the power switch circuit corresponding 110 according to the output of motor commutation circuit 104, be output from predrive output switching circuit 130 with the 2nd motor.That is, regularly T6 is the border, and energising switching signal 119 is generated and output by predrive circuit 109 from the 2nd motor position detection signal 120, is imported into the power switch circuit 110 of the 2nd corresponding motor simultaneously by predrive output switching circuit 130.
And 110 pairs the 2nd motors of this power switch circuit provide electric current (the 2nd electric power switch circuit output 205), at timing the 2nd electric motor starting of described T6.
In addition, in the timing of described T6, be high impedance status simultaneously for the output of the power switch circuit corresponding 110 with the 1st motor of predrive output switching circuit 130, the output 204 of power switch circuit 110 is high impedance status also, stops the driving of the 1st motor.
More than, can obtain the effect identical with described embodiments of the present invention 1.
Utilizability on the industry
Motor driver of the present invention is established at the various AV that a plurality of motors alternately moved use Useful on the purposes of standby and OA equipment, household electrical appliance etc.
Claims (8)
1. motor driver comprises:
The position detection signal treatment circuit is handled the position detection signal of a plurality of motors;
Predrive circuit generates the energising switching signal of described a plurality of motors;
A plurality of power switch circuits according to the output of described predrive circuit, provide electric current to described a plurality of motors; And
The motor commutation circuit indicates the driving of described a plurality of motors to switch,
Described motor driver alternately drives described a plurality of motor, it is characterized in that,
According to input signal to described motor commutation circuit, described position detection signal treatment circuit is selected the position detection signal of the motor that should drive in the described position detection signal of described a plurality of motors, the position probing processing signals is input to described predrive circuit, one of described a plurality of power switch circuits is selected, thereby the described motor that should drive is driven.
2. motor driver as claimed in claim 1, wherein,
Described position detection signal treatment circuit, described predrive circuit, described power switch circuit and described motor commutation circuit are made of a chip semiconductor element.
3. motor driver as claimed in claim 2, wherein,
A described chip semiconductor element also comprises the operational mode commutation circuit, and this operational mode commutation circuit comprises the operation of motor/stop commutation circuit, just change/reverse commutation circuit and braking mode commutation circuit.
4. motor driver as claimed in claim 1, wherein,
Have a plurality of described predrive circuits, make it corresponding with each of described a plurality of power switch circuits, described position probing processing signals is selected to be input to a described predrive circuit corresponding with the described motor that should drive.
5. motor driver as claimed in claim 1, wherein,
Described a plurality of power switch circuit jointly has a described predrive circuit, and the output of described predrive circuit is selected the power switch circuit corresponding with the described motor that should drive and is output.
6. motor driver as claimed in claim 1, wherein,
Described a plurality of power switch circuit is except for selecteed one of the described motor that should drive, and all the other are high impedance status.
7. motor driver as claimed in claim 1, wherein,
Described a plurality of motor is the three-phase DC brushless motor with the position detector that is used to export described position detection signal.
8. motor driver as claimed in claim 1, wherein,
Described a plurality of motor is that the back electromotive force according to described motor detects the rotor and the relative position between the stator of described motor and exports the three-phase DC brushless motor of described position detection signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005317924A JP2007129787A (en) | 2005-11-01 | 2005-11-01 | Motor drive |
| JP317924/2005 | 2005-11-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101253680A true CN101253680A (en) | 2008-08-27 |
Family
ID=38005693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200680031558XA Pending CN101253680A (en) | 2005-11-01 | 2006-10-27 | Motor drive |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7834567B2 (en) |
| JP (1) | JP2007129787A (en) |
| CN (1) | CN101253680A (en) |
| WO (1) | WO2007052542A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101873094A (en) * | 2010-07-16 | 2010-10-27 | 西北工业大学 | Control system of redundant high voltage permanent magnet brushless direct current motor |
| CN101997462A (en) * | 2009-08-11 | 2011-03-30 | 上海古鳌电子机械有限公司 | Dual-servo distribution transmission system |
| CN104052342A (en) * | 2013-03-13 | 2014-09-17 | 广东美的制冷设备有限公司 | Motor control device and air conditioning system having the same |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5398453B2 (en) * | 2009-09-29 | 2014-01-29 | 株式会社東芝 | Washing machine |
| JP2011217530A (en) * | 2010-03-31 | 2011-10-27 | Toshiba Mach Co Ltd | Servo control method and servo control apparatus |
| US8340735B2 (en) | 2010-08-06 | 2012-12-25 | Research In Motion Limited | Electromagnetic shielding and an acoustic chamber for a microphone in a mobile electronic device |
| US20130002230A1 (en) * | 2011-06-28 | 2013-01-03 | Progress Rail Services Corp. | Ac load soft start for variable-frequency power source |
| US8866326B1 (en) * | 2013-04-10 | 2014-10-21 | Hamilton Sundstrand Corporation | Interleaved motor controllers for an electric taxi system |
| US10720874B2 (en) * | 2016-07-27 | 2020-07-21 | Panasonic Intellectual Property Management Co., Ltd. | Brushless DC motor |
| CN110022093B (en) * | 2019-05-10 | 2021-06-25 | 深圳市兆威机电股份有限公司 | Motor control method and system |
| DE102019112721A1 (en) * | 2019-05-15 | 2020-11-19 | Maschinenfabrik Reinhausen Gmbh | Method for performing a switchover of at least two switching means of an operating means and drive system for at least two switching means in an operating means |
| JP2021072373A (en) * | 2019-10-31 | 2021-05-06 | セイコーエプソン株式会社 | Motor drive circuit, integrated circuit device, and electronic apparatus |
| US11215477B2 (en) | 2020-03-11 | 2022-01-04 | Hamilton Sundstrand Corporation | Motor control systems for multiple motor drives |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6096196A (en) * | 1983-10-27 | 1985-05-29 | Mitsubishi Electric Corp | Semiconductor integrated circuit device for driving motor |
| JP2662397B2 (en) | 1987-04-13 | 1997-10-08 | キヤノン株式会社 | Drive control IC |
| JP3556813B2 (en) | 1997-10-06 | 2004-08-25 | 三菱重工業株式会社 | Motor drive mechanism |
| JP4380012B2 (en) | 2000-04-04 | 2009-12-09 | パナソニック株式会社 | Motor drive device |
| JP4130776B2 (en) | 2001-04-16 | 2008-08-06 | ソニー株式会社 | Disc holding member, recording and / or reproducing device, and disc changer device |
| JP2003202719A (en) | 2001-12-28 | 2003-07-18 | Nidec-Shimpo Corp | Driving device for image forming device |
| US7002315B2 (en) | 2002-05-28 | 2006-02-21 | Toshiba Kikai Kabushiki Kaisha | Servo control device |
| JP2004274817A (en) * | 2003-03-05 | 2004-09-30 | Yazaki Corp | Motor forward/reverse drive circuit |
| JP4314858B2 (en) * | 2003-03-28 | 2009-08-19 | ミツミ電機株式会社 | Motor driving circuit and motor driving method |
| JP4684586B2 (en) | 2003-07-30 | 2011-05-18 | キヤノン株式会社 | Motor drive circuit and recording apparatus provided with the circuit |
| JP4333598B2 (en) * | 2004-02-13 | 2009-09-16 | 富士電機システムズ株式会社 | Fan filter unit, fan filter unit system and clean room |
-
2005
- 2005-11-01 JP JP2005317924A patent/JP2007129787A/en active Pending
-
2006
- 2006-10-27 US US12/063,057 patent/US7834567B2/en not_active Expired - Fee Related
- 2006-10-27 CN CNA200680031558XA patent/CN101253680A/en active Pending
- 2006-10-27 WO PCT/JP2006/321467 patent/WO2007052542A1/en active Application Filing
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997462A (en) * | 2009-08-11 | 2011-03-30 | 上海古鳌电子机械有限公司 | Dual-servo distribution transmission system |
| CN101997462B (en) * | 2009-08-11 | 2013-09-18 | 上海古鳌电子科技股份有限公司 | Dual-servo distribution transmission system |
| CN101873094A (en) * | 2010-07-16 | 2010-10-27 | 西北工业大学 | Control system of redundant high voltage permanent magnet brushless direct current motor |
| CN101873094B (en) * | 2010-07-16 | 2012-10-31 | 西北工业大学 | Control system of redundant high voltage permanent magnet brushless direct current motor |
| CN104052342A (en) * | 2013-03-13 | 2014-09-17 | 广东美的制冷设备有限公司 | Motor control device and air conditioning system having the same |
| CN104052342B (en) * | 2013-03-13 | 2016-11-02 | 广东美的制冷设备有限公司 | A kind of motor control assembly and there is its air-conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090256504A1 (en) | 2009-10-15 |
| JP2007129787A (en) | 2007-05-24 |
| US7834567B2 (en) | 2010-11-16 |
| WO2007052542A1 (en) | 2007-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101253680A (en) | Motor drive | |
| US8461783B2 (en) | Electric drive unit for a water-bearing domestic appliance | |
| CN1330084C (en) | Controller | |
| US20110241597A1 (en) | H-bridge drive circuit for step motor control | |
| US20130285584A1 (en) | Motor driving apparatus and method | |
| CN100454748C (en) | Excitation of switch magnetic resistance motor | |
| CN202833210U (en) | Inducted draft fan driven by direct current motor | |
| CN112398381B (en) | Stopping method and control method of brushless direct current motor, motor controller and electric device | |
| JP5503008B2 (en) | AC motor rotation direction detection method and AC motor power converter using the same | |
| US6642683B1 (en) | Controller and associated drive assembly for power sharing, time sliced control of a brushless direct current motor | |
| JP2017127182A (en) | Motor control system, control method and vacuum cleaner | |
| CN101453182A (en) | Motor uni-current sensor controlling method and apparatus based on four switch inversion bridge | |
| US20050253549A1 (en) | Single-phase induction motor | |
| US7965053B2 (en) | Measurement of speed and direction of coasting permanent magnet synchronous motor | |
| US6661190B1 (en) | Controller and associated drive assembly controlling a brushless direct current motor | |
| US9893670B2 (en) | Inverter control apparatus and air conditioner | |
| CN208479501U (en) | Dual-motors Driving circuit | |
| US5894211A (en) | Electric machine | |
| Shanmugasundram et al. | Low-cost high performance brushless dc motor drive for speed control applications | |
| Su et al. | Design of a PM brushless motor drive for hybrid electrical vehicle application | |
| CN205178809U (en) | Fan, pump, motor element and be used for motor drive's integrated circuit | |
| CN205792323U (en) | Brushless electric machine control circuit for electric tool | |
| CN201716402U (en) | Full-power performance testing system of motor or power generator with no loading machine or drive | |
| CN208594391U (en) | A kind of zero-g aerospace dynamical system in washer | |
| CN102195540B (en) | Motor driving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: MEIWA MOTOR CO., LTD. Free format text: FORMER OWNER: MATSUSHITA ELECTRIC INDUSTRIAL CO, LTD. Effective date: 20110523 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: OSAKA PREFECTURE, JAPAN TO: TOKYO, JAPAN |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110523 Address after: Tokyo, Japan, Japan Applicant after: Meiwa Motor Co., Ltd. Address before: Osaka Japan Applicant before: Matsushita Electric Industrial Co., Ltd. |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080827 |